I recently visited Gragnano

I am related to Andrea Del Gaudio Weiss.I just two weeks in Gragnano with relatives.The name did infact originate there.I'm looking for siblings of my great grandfather that came to the United States (Brooklyn, NYC area).The names of his siblings are...Francesco(1907), Angelina, Carmela, Emilia, Gustina.Unfortunetly I cannot find any of there names on Ellis Island records because I'm guessing that they were either married before the arrived, or they arrived after records have ceased from Ellis Island.If anyone knows any connection to the above names, please inform me.I would love to contact someone with a relation.